Please help!! Suppose you drive a car 192 miles on one tank of gas. The tank holds 16 gallons of gas. (Assume the car travels the same distance for each one gallon of gas)

The number of miles traveled varies directly with the number of gallons of gas you use.
a. Write an equation that relates miles tracked to gallons of gas used.
b. How far can you travel with 3.7 gallons of gas? (Make sure to show the calculations you did to determine this answer)